Energy & Power
EV Charging Infrastructure
Charging current sensing, residual-current protection and cable temperature monitoring for DC fast and AC slow chargers, plus electronic lock, metering and communication supply.
EV Charging Infrastructure
A charger mixes high and low voltage in one box: it must measure hundreds of amperes of charging current for billing, and milliamperes of residual current for personal protection — ranges separated by several orders of magnitude, usually on the same control board.
RJMICRO linear Hall current sensors handle the main charging current, the differential Hall approach covers residual current and insulation monitoring, Hall latches manage the connector electronic lock and flap position, and low-quiescent-current LDOs supply metering and communication modules.
Systems and scenarios covered
DC fast charging
- Charging module output current sensing
- insulation and residual-current monitoring
- combined cable temperature and current supervision
AC slow charging
- AC input current sensing
- residual-current protection (RCD)
- connector electronic lock and flap position sensing
Metering and communication
- Energy metering signal acquisition
- card reader and display backlight drive
- 4G / PLC module supply